:root{--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--bg-dark: #0c0d12;--bg-surface: #14161f;--bg-card: rgba(20, 22, 31, .85);--bg-card-hover: rgba(28, 32, 45, .92);--bg-input: rgba(16, 18, 25, .95);--border-subtle: rgba(255, 255, 255, .08);--border-focus: #f59e0b;--border-accent: rgba(245, 158, 11, .35);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--primary: #f59e0b;--primary-glow: rgba(245, 158, 11, .35);--primary-gradient: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);--amber-gradient: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);--cyan-gradient: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);--emerald-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);--success: #10b981;--success-bg: rgba(16, 185, 129, .14);--error: #f43f5e;--error-bg: rgba(244, 63, 94, .14);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .14);--info: #38bdf8;--info-bg: rgba(56, 189, 248, .14);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .35);--shadow-md: 0 8px 24px rgba(0, 0, 0, .5);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .65);--shadow-glow: 0 0 25px rgba(245, 158, 11, .28);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--transition: all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-dark);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 0% 0%,rgba(245,158,11,.1) 0px,transparent 45%),radial-gradient(at 100% 0%,rgba(234,88,12,.08) 0px,transparent 45%),radial-gradient(at 50% 100%,rgba(245,158,11,.06) 0px,transparent 50%),radial-gradient(circle at 50% 30%,rgba(20,22,31,.5) 0%,transparent 70%);background-attachment:fixed}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;color:#fff;letter-spacing:-.02em}.glass-panel{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:var(--transition)}.glass-panel:hover{border-color:#ffffff24}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;font-family:var(--font-sans);font-size:.95rem;font-weight:600;border-radius:var(--radius-md);border:none;cursor:pointer;transition:var(--transition);text-decoration:none}.btn-primary{background:var(--primary-gradient);color:#0c0d12;font-weight:700;letter-spacing:.01em;box-shadow:0 4px 14px #f59e0b52}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #f59e0b7a;filter:brightness(1.06)}.btn-secondary{background:#ffffff0f;color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover:not(:disabled){background:#ffffff1f;border-color:#fff3;transform:translateY(-1px)}.btn-success{background:var(--emerald-gradient);color:#fff;box-shadow:0 4px 15px #10b9814d}.btn-success:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #10b98173}.btn-danger{background:#ef44441f;color:#f87171;border:1px solid rgba(239,68,68,.25)}.btn-danger:hover:not(:disabled){background:#ef444440;color:#fff}.btn-outline{background:transparent;color:var(--text-secondary);border:1px solid var(--border-subtle)}.btn-outline:hover:not(:disabled){color:var(--text-primary);background:#ffffff0d;border-color:#fff3}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:var(--radius-full);font-size:.78rem;font-weight:600;letter-spacing:.02em}.badge-primary{background:#f59e0b24;color:#fbbf24;border:1px solid rgba(245,158,11,.35)}.badge-success{background:var(--success-bg);color:#6ee7b7;border:1px solid rgba(16,185,129,.3)}.badge-warning{background:var(--warning-bg);color:#fcd34d;border:1px solid rgba(245,158,11,.3)}.badge-danger{background:var(--error-bg);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}.badge-cyan{background:#06b6d426;color:#67e8f9;border:1px solid rgba(6,182,212,.3)}.form-group{display:flex;flex-direction:column;gap:8px}.form-label{font-size:.88rem;font-weight:600;color:var(--text-secondary)}.form-input,.form-textarea{width:100%;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);font-size:.95rem;transition:var(--transition)}.form-textarea{font-family:Fira Code,Menlo,Monaco,Courier New,monospace;font-size:.9rem;line-height:1.5;resize:vertical}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #f59e0b38;background:#101219fa}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGlow{0%,to{box-shadow:0 0 15px #f59e0b40}50%{box-shadow:0 0 25px #f59e0b80}}@keyframes scaleUp{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.animate-fade-in{animation:fadeIn .3s ease-out forwards}.animate-scale-up{animation:scaleUp .25s cubic-bezier(.16,1,.3,1) forwards}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-surface)}::-webkit-scrollbar-thumb{background:#27272a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#3f3f46}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,#ffffff08 25%,#f59e0b14,#ffffff08 75%);background-size:200% 100%;animation:shimmer 1.8s cubic-bezier(.4,0,.6,1) infinite;border-radius:var(--radius-sm)}.skeleton-title{height:22px;border-radius:6px;width:70%}.skeleton-text{height:14px;border-radius:4px;width:100%}.skeleton-badge{height:22px;width:76px;border-radius:var(--radius-full)}.skeleton-btn{height:36px;border-radius:var(--radius-sm);width:100px}@keyframes toastSlideIn{0%{opacity:0;transform:translateY(-12px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.toast-container{position:fixed;top:calc(20px + env(safe-area-inset-top,0px));right:24px;z-index:10000;display:flex;flex-direction:column;gap:10px;pointer-events:none;max-width:440px;width:calc(100% - 32px)}@media(max-width:640px){.toast-container{top:calc(12px + env(safe-area-inset-top,0px));left:50%;right:auto;transform:translate(-50%);width:calc(100% - 24px)}}.toast-card{pointer-events:auto;background:#12141cfa;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(245,158,11,.4);border-radius:var(--radius-md);padding:12px 16px;box-shadow:0 12px 35px #000000bf,0 0 20px #f59e0b40;color:#fff;display:flex;align-items:center;gap:12px;font-size:.88rem;animation:toastSlideIn .3s cubic-bezier(.16,1,.3,1) forwards}.toast-dismiss-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0}.toast-dismiss-btn:hover{color:#fff;background:#ffffff1a}.auth-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#080a0fd9;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:16px;overflow-y:auto}.auth-modal-card{width:100%;max-width:440px;background:#13151f;border:1px solid rgba(245,158,11,.28);border-radius:20px;box-shadow:0 25px 60px -10px #000000d9,0 0 35px #f59e0b1f;overflow:hidden;position:relative;display:flex;flex-direction:column}.auth-tab-pill-container{display:flex;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:4px;margin:0 24px;gap:4px}.auth-tab-pill{flex:1;padding:9px 12px;border-radius:9px;border:none;font-size:.86rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:7px;transition:all .2s cubic-bezier(.16,1,.3,1);background:transparent;color:var(--text-muted)}.auth-tab-pill.active{background:linear-gradient(135deg,#f59e0b,#d97706);color:#0c0d12;font-weight:700;box-shadow:0 2px 10px #f59e0b59}.auth-tab-pill:not(.active):hover{color:var(--text-primary);background:#ffffff0a}.auth-field-group{display:flex;flex-direction:column;gap:6px}.auth-input-wrapper{position:relative;display:flex;align-items:center}.auth-input-wrapper .auth-input{width:100%;padding:11px 40px 11px 38px;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:10px;color:#fff;font-size:.9rem;font-family:inherit;outline:none;transition:all .2s ease}.auth-input-wrapper .auth-input:focus{border-color:#f59e0b;background:#ffffff0f;box-shadow:0 0 0 3px #f59e0b2e}.auth-input-wrapper .auth-input::placeholder{color:#ffffff4d}.auth-input-icon-left{position:absolute;left:12px;color:var(--text-muted);pointer-events:none;display:flex;align-items:center}.auth-input-icon-right{position:absolute;right:10px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center;transition:var(--transition)}.auth-input-icon-right:hover{color:#fff;background:#ffffff14}.strength-bar-container{display:flex;gap:5px;margin-top:6px}.strength-segment{height:4px;flex:1;border-radius:2px;background:#ffffff1a;transition:background-color .3s ease}html,body{overflow-x:hidden;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.quiz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.navbar-header{border-bottom:1px solid var(--border-subtle);background:#0c0d12f0;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);position:sticky;top:0;z-index:100;width:100%}.navbar-container{max-width:1240px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}@media(min-width:769px){.navbar-container{padding:10px 16px;flex-wrap:nowrap;gap:16px}.navbar-brand{order:1;flex-shrink:0}.navbar-tabs{order:2;display:flex;gap:6px}.navbar-actions{order:3;display:flex;align-items:center;gap:10px;flex-shrink:0}}@media(max-width:768px){.navbar-container{flex-wrap:wrap;padding:8px 12px 6px;gap:6px 0}.navbar-brand{order:1;display:flex;align-items:center}.navbar-actions{order:2;display:flex;align-items:center;gap:6px;margin-left:auto}.navbar-tabs{order:3;width:100%;display:flex;gap:6px;overflow-x:auto;padding:6px 0 2px;scrollbar-width:none;-webkit-overflow-scrolling:touch}.navbar-tabs::-webkit-scrollbar{display:none}}.nav-tabs-wrapper{display:flex;align-items:center;gap:6px;flex-shrink:0}.nav-tab-btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:5px 12px;border-radius:var(--radius-full);font-size:.82rem;font-weight:600;white-space:nowrap;cursor:pointer;transition:var(--transition);border:1px solid var(--border-subtle);background:#ffffff0a;color:var(--text-secondary);user-select:none;-webkit-user-select:none;min-height:32px;line-height:1}.nav-tab-btn:hover{background:#ffffff14;color:#fff;border-color:#fff3}.nav-tab-btn.active{background:var(--primary-gradient);border-color:transparent;color:#0c0d12;font-weight:700;box-shadow:0 2px 10px #f59e0b59}@media(max-width:380px){.nav-tab-btn{padding:4px 5px;font-size:.7rem;gap:2px}.nav-brand-text{font-size:1rem!important}}.question-pills-bar{display:flex;gap:8px;overflow-x:auto;flex-wrap:nowrap;padding:4px 2px 10px;-webkit-overflow-scrolling:touch;scrollbar-width:none}.question-pills-bar::-webkit-scrollbar{display:none}.quiz-option-card{display:flex;align-items:center;gap:14px;padding:15px 18px;min-height:52px;border-radius:var(--radius-md);cursor:pointer;user-select:none;-webkit-user-select:none;transition:var(--transition)}.quiz-option-card:active{transform:scale(.985)}.hide-on-mobile{display:inherit}.show-on-mobile{display:none}.desktop-table-view{display:block}.mobile-cards-view{display:none}@media(max-width:768px){:root{--radius-lg: 16px;--radius-md: 12px}.hide-on-mobile{display:none!important}body{font-size:15px}h1{font-size:1.65rem!important;line-height:1.25!important}h2{font-size:1.35rem!important;line-height:1.3!important}h3{font-size:1.15rem!important;line-height:1.35!important}.btn{padding:10px 16px;font-size:.88rem;min-height:44px}.glass-panel{border-radius:var(--radius-lg)}.desktop-table-view{display:none!important}.mobile-cards-view{display:flex!important;flex-direction:column;gap:12px}}@media(max-width:640px){.hide-on-mobile{display:none!important}.show-on-mobile{display:block!important}.quiz-grid{grid-template-columns:1fr;gap:14px}.quiz-option-card{padding:12px 14px;gap:10px;min-height:48px}.form-input,.form-textarea{font-size:16px!important;padding:10px 14px}.mobile-sticky-actions{position:sticky;bottom:0;left:0;right:0;background:#101219f2;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border-subtle);padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px)) 16px;margin:20px -12px -14px;z-index:50;box-shadow:0 -8px 25px #00000080}}